Curval,
It's a shame but US tax codes are way more complex than a 2-sentence blurb on a web site can encapsulate. The US has death tax treaties with most European countries, plus Canada and Japan. Unless you are from Outer Mongolia, you would probably qualify for the same death tax as a US citizen. But my point is that unless you have spoken with someone who knows the ins and outs of the US tax code, you can't make an informed decision about the estate tax. Or any other US tax, because the tax code is frikken insane.
ra